<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <script src="./vue3.js"></script>
    <div id="root"></div>
    
    <script>
       let app = Vue.createApp({
            data(){
                return {
                    inputVal:'',
                    list:[]
                }
            },
            methods: {
                handleAddItem(){
                    this.list.push(this.inputVal)
                    this.inputVal=''
                }
            },
            template:`
               <div>
                 <input v-model="inputVal">
                 <button @click="handleAddItem">增加</button>
                  <ul><todo-item v-for="(item, index) of list" :content="item" /></ul>
                <div>
            `
        })

        app.component('todo-item',{
            props:['content'],
            template:'<li>{{content}}</li>'
        })
        app.mount("#root")

    </script>
</body>
</html>